Rod-mill



3 Sheets-Sheet 1.

(No Model.)

H. S. SMITH, O. PETTIGREW & W. GARRETT.

ROD MILL.

No. 440,376. Patented Nov. 11,1890.

3 Sheets-Sheet 2.

(No Model.)

H. S. SMITH, O. PETTIGREW & W. GARRETT.

ROD MILL.

Patented Nov. 11, 1890.

All

1: News PETERS 1:0, Puuwuwa, wAsHmm'Ou, v. c,

(No Model.) 3 Sheets-Sheet 3.

H. S. SMITH, C. PETTIGREW 8v W. GARRETT. ROD MILL.

No. 440,376. Patented Nov. 11, 1890.

I UNITED STATES ATENT FFICE;

IIORAOE S. SMITH, CHARLES PETTIGREVV, AND \VILLIAM GARRETT, OF JOLIET,ASSIGNORS TO THE ILLINOIS STEEL COMPANY, OF CHICAGO, ILLINOIS.

ROD-MILL.

SPECIFICATION forming part of Letters Patent No. 440,376, dated November11, 1890.

Application filed July 2, 1889- Serial No. 316,283. (No model.)

To all whom it may concern.-

Be it known that we, HORACE S. SMITH, CHARLES PETTIGREW, and WILLIAMGAR- RETT, all of J oliet, Will county, Illinois, have invented a newand useful Improvement in Rod-Mills, of which the following is a full,true, and exact description, reference being had to the accompanyingdrawings.

Our invention relates to an improved construction of rolling-mills formetallic rods by which the wire is conveniently guided upon inclinedfloors, thereby preventing the tangling of the wire, while at the sametime the mills themselves are operated from one engine, and in such away as to protect the workmen working upon the third mill from therevolving shaft operating the fourth mill.

Our invention will be readily understood from the accompanying drawings,in which Figure 1 represents a sectional elevation showing the method ofdriving the rolls and part of the floor-plans; Fig. 2, adetailed view onthe opposite side of the last two rolls Fig. 3, an elevation of thefirst set of rolls; Fig. l, an elevation of the second set; Fig. 5, anelevation of the third and fourth sets, and Fig. 6 a plan View showingthe general arrangement of the mill.

We do not in this application claim or describe in full detail themethod of driving the four sets of rolls at increasing speed, the samehaving been fully described in the application of Horace S. Smith andWilliam Garrett for United States Letters Patent, filed on the 15th dayof June, 1889, Serial No. 314,515.

The four sets of rolls A, B, O, and D are driven from the shafts E, F,G, and H, each at avelocity higher than the preceding one, as shown, thepower being applied directly to the shaft E, and thence increased invelocity by belting. These rollers may be of any desired shape, and wedo not claim any specific form thereof, our invention being principallyexhibited in the combinations of inclined floors and driving mechanismof the last two sets of rollers O D.

The general operating-floor of the mill is represented at 0, upon whichthe rods from the first two mills A and B pass. The second two mills Oand D are capable of simultaneously running two or more rods, as shownin Fig. 6, and they deliver upon both sides upon inclined floors, so asto prevent the tangling of the double wires. The floor of the third mill0 is level, as atJ, and then inclined, as at K, to the right of theapparatus, as shown in Fig. 1. The floor to the right of the fourth setof rolls is likewise level, as at L, and inclined, as at N. Upon theleft of the rolls 0 and D the floor is inclined, as at M, Fig. 1, and anover-floor V may extend partially over the floor M, if desired. Thefloor M may be provided with guiding-chutes 0, if desired, tending tokeep the loops in the proper relations. The driving-shaft H, whichdrives the rollers D, passes beneath the floor J, thereby protecting theworkmen who are operating the rollers there from the shaft H. IVe do notin this application describe fully the shape of the passes in the rolls,whether oval or square, or the construction of the repeating-troughs P,which may be of any suitable and practicalarrangement, and are wellknown in the art.

The operation of our apparatus can now be understood. The billet ispassed through the first set of rollers A the desired number of timesand issues as a rod R. Passing then through the rollers B it is againreduced in size. The rollers A B are of sutlicient capacity to supplydouble the metal required by a single set of rollers O D, and theserollers are therefore arranged to simultaneously pass two rods R R andconvert them into the finished wire. The loops of wire passing out fromboth sides of the rollers O D are delivered down upon the sloping floorsK, M, and N, which prevent tangling of the wire by allowing it to glidedown as it is delivered from the rollers. The level floors J L affordplatforms for the workmen to stand, and at the same time the floor Jprotects the workmen from the shaft beneath.

It is to be observed that the rollers O D are both driven from one endonly, the other end being free. Power is not transferred from the shaftof the roller 0 to the shaft of the roller D; but each has anindependent driving-shaft. By this arrangementwe are enabled to avoidthe well-known unequal wear hitherto experienced, which wears thebrasses unequally, and as a result makes imperfect rods.

It is to be observed that the rolls 0 D are both driven fromthe initialend, thereby transmitting no power through the last set of rolls C D,which are thus left entirely at liberty so far as transmitting power isconcerned. By this arrangement we are enabled to keep the finishingstand of rolls in much better line and shape than when the power istransmitted through them, as in the ordinary manner in Garrett mills.

What we claim as our invention, and desire to secure by Letters Patent,is

1. The combination, in a rod or wire mill, of a roller-mill with a levelfloor adjacent thereto placed intermediate between two inclined floorsupon which the wire delivered from both sides of said mills rests in theprocess of manufacture, substantially as described.

2. The combination, in a rod or wire mill, of the rollers C D, floors J,K, L, N, and M, and shaft H, the said shaft passing beneath the fioor Jand above the floor N, substantially as described.

3. The combination, in a wire or rodmill,

of the rolls A, B, O, and D, driven by shafts E,F, G, and H from onemotor and at increas ing velocities, the inclined floors K, N, and M,and the floor J, protecting the shaft H, substantially as described.

4;. The combination, in a wire or rod mill, of two sets of rolls, thedriving-shafts of which are in different horizontal planes, one of saidshafts extending past the other set of rolls, a protector over thelatter shaft, and means for applying power at the corresponding ends ofthe shafts, substantially as described.

5. The com binatiomin a rod-mill, of four sets of rolls A B O D, eachdriven from an independent shaft, the last two sets of rolls beingarranged one beyond the end of the other and between two inclinedfloors, substantially as described.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

HORACE S. SMITH. CHAS. PETTIGREW. WILLIAM GARRETT.

Witnesses:

W. D. PUTLAND, E. K. HENRY.

